Umbrella holder



FIG. 1 is a back view of my invention;

FIG. 2 is side view thereof;

FIG. 3 is a front view thereof; and,

FIG. 4 is a side view thereof, showing the umbrella holder in use with an umbrella, the umbrella being shown in broken lines and forming no part of the claimed design. 

CLAIM I claim the ornamental design for an umbrella holder, as shown and described. 